<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
    <meta charset="UTF-8" />
    <title>登录页面</title>
</head>
<body>
    <div th:if="${param.error}">
        无效的账号和密码
    </div>
    <div th:if="${param.logout}">
        你已注销
    </div>
<form th:action="@{/login}" method="post">
    <div><label>账号: <input type="text" name="username" /></label></div>
    <div><label>密码: <input type="password" name="password" /></label></div>
    <div><input type="submit" value="登录" /></div>
</form>
</body>
</html>